Computing-scale.



Patented Apr. 8, i902. F. E. MEFFDRD.

CUMPUTING SCALE.

(Applicltiqn led Oct. 12, 1991.)

(No Model.)

DLI

i. rr. Tun Sfrnfvns Pnrnivr Ormes.

FRED E. MEFFORD, OF PARKLAND, OKLAHOMA TERRITORY.

SPECLECATION forming part of Letters Patent No. 697,098, dated April 8,1902.

Application led October l2, 1901. Serial No. 78,507. (No model.) l

i0 @ZZ whont it may concern.-

Be it known that I, FRED E. MEFnonD,a citizen of the United States,residing at Park land, in the countyof Lincoln and Territory ofOklahoma, have invented a new and useful Computing-Scale, of which thefollowing is a specification.

My invention relates to computing-scales.

The objects of my invention are, first, to provide a new form ofcomputingscales which shall be simple and rapid in operation; second, toprovide a computingscale that will show at one time the price per pound,the number of pounds, the total cost of the article weighed, and theweight of the scoop or other receptacle used; third, to provide acomputingscale which does not require weights to balance it.

With these objects in view my invention consists in the peculiarconstruction of the various parts and their novel combination crarrangement, all of which will be fully de scribed, and pointed out inthe claims.

In the drawings forming a part of this speciiication, Figure l is afront elevation. Fig. 2 is a section on the line 5 5, Fig. 3. Fig. 3

is a top view with the platform and section on the line d el, Fig. l,removed. Fig. d is a view of the disk, showing circles and arrangementof figures.

Similar characters refer to similar parts throughout the several views.

The platform A is connected to D by the supports B D, which rest uponthe frame D.

D and E are two rectangular frames andare connected to each other by thesprings O O.

G is a pinion which works in the teeth of the rack F, which is connectedto E.

The above is in Fig. l.

When the knob H, Fig. 2, is turned, the pinions G G engage the teeth ofthe racks F F and raise or lower the two frames D and frame E, and saidframe has vertical extensions 14., which bear against the sides of thecasing and prevent the frame from tilting and the platform A.

L is a rack fastened to E and works inthe pinion M and turns the pointerN.

U is a dial graduated to pounds and fractions of pounds.

I is a rack fastened to D and works in the pinion J, 'which turns thedisk K.

O is a knob.

X is a pinion which works in the teeth of S.

S is a slide having an aperture T and teeth on one side.

R is a dial upon which the price per pound is printed.

V is an opening through which the numloer of pounds can be seen. y

K is a disk upon which are printed a number of concentric circlesdivided into a certain nu inberof parts corresponding to poundmarks.Upon the largest circle the numbers denoting the number of pounds areplaced. On the smaller' circles the cost of one or more pounds isplaced. It is accomplished in the following manner: Beginning at a pointwhich is one fourth the distance around the circle from the one-poundmark, the price of one pound is placed, on the next pound-mark the costof two pounds is placed, and so on around the circle. Each circle istreated in the saine way, except another price is used as the price ofone pound.

Fig. 4 shows the disk when it is figured as above.

It must be understood that any price can be used and any number ofcircles and divisions may be used, according to the strength of thesprings C C.

The scale is operated in the following manner: The knob O is turneduntil the pointer P points to the price of one pound. The slide S willmove and bring the opening' T over the circle which shows the cost ofthe different number of pounds at that price. The article to be weighedis placed upon the platform A, and it descends, moving the frame D andthe rack The rack I works in the pinion J and revolves the disk K. Thenumber of pounds will be seen at V and the cost at T. If a scoop orother receptacle is used, the knob H is turned until the zero-pointisseen at V. The pinions G Gengage the teeth of the racks F F and raisethe platform A. and the frames D and E and the rack I. The rack L beingfastened to E also moves upward and turns the pointer N. When the zeroshows at V, the

number of pounds will be shown at the head of the pointer N on the dialU.

It is evident that in order to bring the Zeropoint at V the frames andplatform and rack l must be raised a distance equal to the dis- IOOtance it moved down. The dial U and pointer N show that distance.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a computing-scale the combination of a. knob, rod two pinions G Gtwo racks F F a frame E rack L pinion M for the purpose specifledsubstantially as described.

` 2. In a price-scale, in combination, a springbalance, a disk rotatedthereby, said disk having a circular scale of Weight-marks and a seriesof scales of price-marks, an indicator adjustable to a desired scale ofsaid series, means to adjust the disk to allow for tare, and a scale toindicate the amount of such tare.

3. In a price-scale, the combination with a balance, a disk rotatedthereby, said disk having scales of weight and price-marks thereon,

Vand indicators forsaid scales, of means to re- FRED E. MEFFORD.

Vitnesses:

FRANK CAsTAToR, J osEPH HAWES.

